Metal roofing



(No Model.)

W. W. TURNER.

METAL ROOFING.

No 573,937. Patented Dec. 29, 1896.

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UNITED STATES PATENT ()FFICE.

WILLIAM W. TURNER, on CHICAGO, ILLINOIS.

METAL ROOFING.

SPECIFICATION forming part of Letters Patent No. 573,937, dated December29, 1896. Application filed April 30, 1896. Serial No. 589,808. (Nomodel.)

To all whom it may concern:

Be it known that 1, WILLIAM W. TURNER, a citizen of the United States,residing at Chi-. cago, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in Metal Roofiu g, ofwhich the following is a specification.

My invention relates to sheet-1netal roofing for tin, though somefeatures of the invention might be applicable to other than sheets ofmetal. 1

It has for its object to provide a plate, particularly a sheet-metalplate adapted for roofing, and particularly adapted for roofing wheresuch plates are to be laid on a roof ap proximately flat.

It also has for its object to provide such a plate as that the waterwill be most thoroughly and completely drained therefrom and thereby.

It also has for its object to provide a plate so organized andconstructed as that when the metal is expanded and contracted it willnot lose its normal shape and will therefore not be noisy, as is thecase with some kinds of metal roofing, and will not furnish or providelittle places for water to collect.

My invention is illustrated in the accompanying drawings, wherein Figurel is a plan view of a plate, and Fig. 2 is a cross-section through suchplate.

Like parts are indicated by the same letter in each figure.

The plate or sheet of metal is composed of the two portions A and B,which are provided each with diagonal grooves or ways A B. These groovesor ways are oppositely inclined, as indicated, and join or terminate ina central groove 0, which is serpentine in shape, and the whole ispreferably formed or stamped or rolled out of a single sheet of metal.Each plate preferably has the upwardly-turned lip .D at the top and alike lip E at one side,

while on the bottom it has the lip F, and on the opposite side has thelip G. The plate is preferably slightly creased or bent at its sides atK and L, and is adapted along its side ed es to interlock with the nextplate and then to be secured to atransverse bar or piece I when inposition.

which supports the sligh tly-lifted edges above the plane of the body ofthe plate. The plate is also preferably inclined longitudinally Theplates are easily interlocked and the edges then forced down upon eachother, so as to make a continuous and secure roof.

The use and operation of myinvention are as follows: It is found thatwith plates of this general character or plates designed for roofing asheretofore constructed there is a continual action of expansion andcontraction, and it appears also that this action varies and that theplate will sometimes expand'more than it will contract, and the resultis that with every such action a certain amount of noise is made andalso the plates are bent, warped, and distorted, so as to endanger theirconnecting points or lines and also so as to make hollows or depressionsinto which the water passes and where it is accumulated. Theconstruction here shown, particularly the diagonal grooves or waysrolled in the metal, results in preventing this contraction andexpansion, or rather results in preventing the disastrous consequencesthereof. These grooves being placed diagonally, the expansion of theplate is taken up by the side portions between the edge of the plate andthe creases K and L, and when the plate recontracts it assumes itsnormal position. Neither is the plate ruptured or injured along the linewhere the water is carried off or the groove through the metal of theplate, for there the groove is placed in serpentine form and with theaction of expansion the plate can give without rupturing this groove ortrouglnwhich it could not well do if the trough were made of a straightline. The arrangement which I have shown also provides for carrying offthe water very readily. The water is all turned by the grooves towardthe trough or serpentine way. There itis discharged, and there it isnecessarily carried off into the overflow-pipe from the roof or otherconduit.

I claim-- 1. A roof-plate comprising a body having oppositely-inclineddiagonal grooves with a central trough into which the grooves open.

ing bent up slightly near the sides, and havpositely-inolined groovesand a serpentine ing a serpentine trough or Way into which the I0 troughinto which the grooves open. grooves open.

3. A roof-plate comprising a body having T i T w 5 oppositely-inclineddiagonal grooves and be- ILLIAM HUB} ing bent up slightly near thesides.

4. A roof-plate comprising a body having oppositely-inclined diagonalgrooves and be- 2. A roof-plate comprising a body with op- Witnesses:

FRANCIS W. PARKER, BER'IHA Oi SIMS.

